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March 27, 2017

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Would you like to help me answers some of my questions in Biology?

1/ Darwin concluded that the most well adapted individuals in a population will leave the most offspring for future generations. This can be considered a measure of an individual's..
a/ phylogeny
b/ family tree
c/ fitness
d/ trophic success

2/Structures that serve little or no purpose in the organism being considered, but are homologous to important structures in other organisms, are referred to as
a/ analogous
b/ mutations
c/ vestigial
d/ convergent

3/Although they all have different phenotypes, the various breeds of domestic dogs have been selectively bred for specific desiable traits. This human- controlled activity is best described as
a/ natural selection
b/ artificial selection
c/ comparative anatomy
d/ convergent evolution

4/ Which of these interactions affects natural selection?
a/ competition
b/ predation
c/ parasitism
d/ all of these

5/ Natural selection selects for or against...
a/ genotypes
b/ phenotypes
c/ communities
d/ ecosystems

6/ Polyploidy as mechanism of speciation occurs most commonly in which of the following organisms?
a/ plants
b/ molluscs
c/ fungi
d/ salamanders
e/ polychaete worms

7/ Among animals, it is believed that the most common mode of speciation is
a/ sympatric
b/ allopatric
c/ chromosomal
d/ directional
e/ autopolyploidy

8/ A breeder of thoroughbreds selects only the fastest horses for breeding stock. This is an example of artificial _________ selection
a/ frequency- dependent
b/ directional
c/ disruptive
d/ sexual
e/ stabilizing

9/ Species that are only distantly related but occupy similar environments often come to resemble each other through a process known as:
a/ genetic drift
b/ divergent evolution
c/ stabilizing selection
d/ coevolution
e/ convergent evolution

10/ Some animal species found in caves have tiny, nonfunctional eyes. These are BEST described as
a/ analogous structures
b/ homologous structures
c/ vestigial structures
d/ mutations

Thanks so much.

  • biology - ,

    We do not do your work for you. Once you have attempted to answer your questions, we will be happy to give you feedback on your work. Although it might require more time and effort, you will learn more if you do your own work. Isn't that why you go to school?

  • biology - ,

    8-b

  • biology - ,

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  • biology - ,

    1aaaaaaaa

  • biology - ,

    What would the answer to question 2 be?
    Just curious.

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